Video: Koj hloov pH ntawm phosphate li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Siv koj li pH meter thiab kho cov pH Raws li kev siv phosphoric acid los yog sodium hydroxide. Nqa tag nrho ntim rau ib liter thaum koj tau mus txog qhov xav tau pH . Dilute raws li qhov tsim nyog. Siv cov tshuaj no los npaj buffers ntawm txawv molarities raws li xav tau.
Tsis tas li, phosphate tsis yog acidic lossis yooj yim?
Vim phosphoric kua qaub muaj ntau yam dissociation tas li, koj tuaj yeem npaj phosphate buffers nyob ze ib qho ntawm peb pHs, uas nyob ntawm 2.15, 6.86, thiab 12.32. 1? Cov tsis pub Feem ntau yog npaj siv monosodium phosphate thiab nws conjugate puag , disodium phosphate.
Dab tsi yog qhov pH ntau ntawm phosphate tsis? 5.8 rau 8.0
Ntxiv mus, yuav ua li cas koj hloov pH ntawm ib tug tsis?
Koj ua tau hloov tus pH ntawm tsis pub daws los ntawm hloov qhov piv ntawm cov kua qaub rau ntsev, los yog xaiv ib qho acid sib txawv thiab ib qho ntawm nws cov ntsev. Lus Cim: Yog tias koj muaj cov kua qaub tsis muaj zog thiab ib qho ntawm nws cov ntsev, qhov no tuaj yeem tsim tau ib qho tsis pub tshuaj uas yog alkaline!
Puas yog HCl muaj zog acid?
A muaj zog acid yog ib kua qaub uas yog kiag li ionized nyob rau hauv ib tug aqueous tov. Hydrogen chloride ( HCl ) ionizes tag nrho rau hauv hydrogen ions thiab chloride ions hauv dej. Ib qho tsis muaj zog kua qaub yog ib kua qaub uas ionizes tsuas yog me ntsis hauv cov tshuaj aqueous. Vim HCl yog a muaj zog acid , nws conjugate puag (Cl−) yog qaug zog heev.
Pom zoo:
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